JP2006124173A - Sheet post-processing apparatus - Google Patents

Sheet post-processing apparatus Download PDF

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Publication number
JP2006124173A
JP2006124173A JP2005008122A JP2005008122A JP2006124173A JP 2006124173 A JP2006124173 A JP 2006124173A JP 2005008122 A JP2005008122 A JP 2005008122A JP 2005008122 A JP2005008122 A JP 2005008122A JP 2006124173 A JP2006124173 A JP 2006124173A
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Japan
Prior art keywords
paper
tray
processing
standby
post
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP2005008122A
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Japanese (ja)
Inventor
Yasunobu Terao
康伸 寺尾
Tokihiko Ise
時彦 伊勢
Hajime Yamamoto
肇 山本
Reiji Murakami
励至 村上
Hiroyuki Taki
裕之 瀧
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Toshiba TEC Corp
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Toshiba TEC Corp
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Priority to JP2005008122A priority Critical patent/JP2006124173A/en
Priority to US11/085,227 priority patent/US20060066035A1/en
Publication of JP2006124173A publication Critical patent/JP2006124173A/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/32—Auxiliary devices for receiving articles during removal of a completed pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/30—Arrangements for removing completed piles
    • B65H31/3009—Arrangements for removing completed piles by dropping, e.g. removing the pile support from under the pile
    • B65H31/3018—Arrangements for removing completed piles by dropping, e.g. removing the pile support from under the pile from opposite part-support elements, e.g. operated simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
    • B65H37/04—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for securing together articles or webs, e.g. by adhesive, stitching or stapling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4212—Forming a pile of articles substantially horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4213—Forming a pile of a limited number of articles, e.g. buffering, forming bundles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
    • B65H2405/11—Parts and details thereof
    • B65H2405/111—Bottom
    • B65H2405/1111—Bottom with several surface portions forming an angle relatively to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
    • B65H2405/11—Parts and details thereof
    • B65H2405/111—Bottom
    • B65H2405/1114—Bottom with surface portions curved in lengthwise direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
    • B65H2405/11—Parts and details thereof
    • B65H2405/111—Bottom
    • B65H2405/1115—Bottom with surface inclined, e.g. in width-wise direction
    • B65H2405/11151—Bottom with surface inclined, e.g. in width-wise direction with surface inclined upwardly in transport direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/24—Post -processing devices
    • B65H2801/27—Devices located downstream of office-type machines

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet post-processing apparatus having a standby tray for maintaining a stable posture of paper sheets. <P>SOLUTION: A standby tray 10 forms a curved raised part 10e in the longitudinal direction (the conveying direction of paper sheets P) on surfaces of tray members 10a, 10a. The curved raised part 10e is formed with a smooth change so that the paper sheets P ride smoothly thereon. The paper sheets P which are curved and loaded by the raised part 10e from lower sides of the paper sheets are flexibly reinforced in the direction orthogonal to the transverse direction of the paper sheets, i.e., the paper sheet conveying direction. Thus, the paper sheets are hardly deflected in the downwardly vertical direction, and easily loaded. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、複写機やプリンタ、複合機等の画像形成装置から排出される用紙の後処理を行う用紙後処理装置に関する。   The present invention relates to a paper post-processing apparatus that performs post-processing of paper discharged from an image forming apparatus such as a copying machine, a printer, or a multifunction peripheral.

近年、画像形成装置にあっては、画像形成後の用紙をソートしたりあるいはステイプル処理する等の用紙の後処理を行うために、画像形成装置本体の排紙部に用紙後処理装置を隣接して設けるものがある。このような用紙後処理装置では、先行する用紙の後処理が終了するのを待って後続の用紙の後処理を行う。このように画像形成装置本体から排出された後続の用紙を待機させるために、従来例えばステイプルに達する経路の途中に待機トレイ等の退避経路を設ける装置がある（例えば、特許文献１参照。）。
特開平１０−２７９１６４号公報 In recent years, in an image forming apparatus, in order to perform post-processing of paper such as sorting or stapling of paper after image formation, the paper post-processing device is adjacent to the paper discharge unit of the image forming apparatus main body. There is something to provide. In such a paper post-processing apparatus, the post-processing of the subsequent paper is performed after the post-processing of the preceding paper is completed. In order to make the subsequent sheet discharged from the image forming apparatus main body stand by in this way, there is a conventional apparatus that provides a retracting path such as a standby tray in the middle of a path reaching a staple, for example (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 10-279164

しかしながら（特許文献１）のように、待機トレイ上で用紙の姿勢が悪いと、処理トレイへ用紙を送り込めない、あるいは処理が出来なくなり、従来の待機トレイでは、良好な整列性が困難であった。   However, as in (Patent Document 1), when the posture of the paper on the standby tray is bad, the paper cannot be fed to the processing tray or cannot be processed, and it is difficult to achieve good alignment with the conventional standby tray. It was.

そこで本発明は上記課題を解決するものであり、用紙が安定した姿勢を保つことができる待機トレイを備えた用紙後処理装置を提供することを目的とする。   SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a sheet post-processing apparatus including a standby tray that can maintain a stable posture of sheets.

本発明の一実施形態によれば、画像形成装置から排出される用紙を待機させる待機トレイと、前記待機トレイの下方に配置され、前記待機トレイから落下供給される前記用紙及び前記待機トレイを経由せずに前記画像形成装置から排出される前記用紙を積載する処理トレイと、前記処理トレイに積載される前記用紙に後処理を行う処理機構と、前記処理トレイから排出される後処理終了後の前記用紙を積載する排紙トレイとを具備した用紙後処理装置であって、前記待機トレイは、前記排出された用紙を載置する一対のトレイ部材が、待機トレイの壁面部から突出するように形成され、前記トレイ部材の表面上に、前記用紙積層下端から上端に対して傾斜を有する隆起部を前記用紙の搬送方向に形成していることを特徴とする用紙後処理装置が提供される。   According to an embodiment of the present invention, the standby tray that waits for paper discharged from the image forming apparatus, the paper that is disposed below the standby tray, and that is dropped and supplied from the standby tray, and the standby tray are used. A processing tray for stacking the sheets discharged from the image forming apparatus without processing, a processing mechanism for performing post-processing on the sheets stacked on the processing tray, and a post-processing end after the post-processing discharged from the processing tray A paper post-processing apparatus including a paper discharge tray on which the paper is stacked, wherein the standby tray is configured such that a pair of tray members on which the discharged paper is placed protrude from a wall surface portion of the standby tray. A paper post-processing apparatus formed on the surface of the tray member, wherein a raised portion having an inclination from the lower end to the upper end of the paper stack is formed in the paper transport direction. It is provided.

また、本発明の別の一実施形態によれば、前記隆起部は、前記トレイ部材の用紙先端側に形成されていることを特徴とする用紙後処理装置が提供される。   According to another embodiment of the present invention, there is provided a paper post-processing apparatus, wherein the raised portion is formed on a paper leading end side of the tray member.

本発明によれば、用紙が安定した姿勢を保つことができ、用紙の整列性が優れた待機トレイを備えた用紙後処理装置が得られる。   According to the present invention, it is possible to obtain a paper post-processing apparatus including a standby tray that can maintain a stable posture of paper and that has excellent paper alignment.

以下、本発明の実施の形態について、図面を参照しながら説明する。尚、各図において同一箇所については同一の符号を付すとともに、重複した説明は省略する。図１は本発明の一実施形態に係る用紙後処理装置７の要部を示す斜視図、図２は本発明の一実施形態に係る用紙後処理装置の要部の上面図、図３は複写機等の画像形成装置５に隣接配置した用紙後処理装置７を示す概略構成図である。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same portions are denoted by the same reference numerals, and redundant description is omitted. FIG. 1 is a perspective view showing a main part of a paper post-processing apparatus 7 according to an embodiment of the present invention, FIG. 2 is a top view of the main part of the paper post-processing apparatus according to an embodiment of the present invention, and FIG. 2 is a schematic configuration diagram showing a sheet post-processing device 7 disposed adjacent to an image forming apparatus 5 such as a printer.

この用紙後処理装置７は、基本的に待機トレイ10、処理トレイ12、ステイプラ14、第1の排紙トレイ16、第2の排紙トレイ18とからなる。   The sheet post-processing device 7 basically includes a standby tray 10, a processing tray 12, a stapler 14, a first discharge tray 16, and a second discharge tray 18.

複写機等の画像形成装置５にて画像形成され、一対の排紙ローラ６から排紙されてくる用紙Ｐは、一対の入口ローラ22で受け取られ、一対の給紙ローラ24に供給され、給紙ローラ24から待機トレイ10に送られる。入口ローラ22は入口ローラモータ26で駆動される。入口ローラ22から待機トレイ10までの間には用紙Ｐを給紙ローラ24に導くペーパーパス天井３６が設けられる。入口ローラ22は、上入口ローラ22a、下入口ローラ22bからなる。給紙ローラ２４も上給紙ローラ、下給紙ローラからなる。   A sheet P formed by an image forming apparatus 5 such as a copying machine and discharged from a pair of paper discharge rollers 6 is received by a pair of entrance rollers 22 and supplied to a pair of paper feed rollers 24 for supply. It is sent from the paper roller 24 to the standby tray 10. The entrance roller 22 is driven by an entrance roller motor 26. A paper path ceiling 36 for guiding the paper P to the paper feed roller 24 is provided between the entrance roller 22 and the standby tray 10. The entrance roller 22 includes an upper entrance roller 22a and a lower entrance roller 22b. The paper feed roller 24 also includes an upper paper feed roller and a lower paper feed roller.

待機トレイ１０の下方には、待機トレイ１０上から落下供給される用紙Ｐを積載する処理トレイ１２が配置される。   Below the standby tray 10 is disposed a processing tray 12 on which the sheets P dropped from the standby tray 10 are stacked.

処理トレイ12は、後処理を行う処理機構であるステイプラ１４により用紙Ｐをステイプル処理する間、積載される用紙Ｐを整合支持する。   The processing tray 12 aligns and supports the stacked paper P while the paper P is stapled by the stapler 14 which is a processing mechanism that performs post-processing.

図７に示すように、待機トレイ10に所定の枚数の用紙が蓄積されると、待機トレイモータ34により待機トレイ部品10a、10bが開き、用紙Ｐは自重により処理トレイ12に落下される。この動作をアクティブドロップという。   As shown in FIG. 7, when a predetermined number of sheets are accumulated in the standby tray 10, the standby tray motors 10 open the standby tray components 10a and 10b, and the paper P is dropped onto the processing tray 12 by its own weight. This operation is called active drop.

図４に示す様にステイプラ１４はステイプル駆動部４９により位置決めされ、ステイプル処理を制御される。処理トレイ１２は、待機トレイ１０から落下供給される複数枚の用紙Ｐを搬送方向である縦方向に整合する図５に示す上下一対の上縦整合ローラ３８ａと下縦整合ローラ３８ｂとを有する。上下縦整合ローラ３８ａ、３８ｂは、ステイプル処理終了後の用紙束Ｔを挟持してステイプラ１４から取り出す束搬送ローラを兼用する。上縦整合ローラ３８ａは縦整合上ローラモータ４０により駆動され、下縦整合ローラ３８ｂは縦整合下ローラモータ４２により駆動される。   As shown in FIG. 4, the stapler 14 is positioned by the staple driving unit 49, and the staple processing is controlled. The processing tray 12 has a pair of upper and lower upper alignment rollers 38a and a lower vertical alignment roller 38b shown in FIG. 5 for aligning a plurality of sheets P dropped and supplied from the standby tray 10 in the vertical direction as the conveying direction. The vertical and vertical alignment rollers 38 a and 38 b also serve as a bundle conveying roller that sandwiches the sheet bundle T after the stapling process and picks it up from the stapler 14. The upper vertical alignment roller 38a is driven by a vertical alignment upper roller motor 40, and the lower vertical alignment roller 38b is driven by a vertical alignment lower roller motor 42.

又用紙Ｐが処理トレイ１２に落下供給される際に用紙Ｐ後端が落下する位置には、処理トレイ１２に載置される最上位の用紙Ｐを縦方向に整合するための回転可能なパドル４４が配置される。パドル４４は、図６に示すように処理トレイ１２上に落下供給される用紙Ｐの受け部４４ａ、処理トレイ１２上に用紙Ｐをはたき落とすはたき部４４ｂ、処理トレイ１２上の用紙Ｐを整合する送り部４４ｃを有し、パドルモータ４６により駆動される。パドル４４は、ゴム材からなり弾性を有する。   A rotatable paddle for aligning the uppermost sheet P placed on the processing tray 12 in the vertical direction is located at the position where the trailing edge of the sheet P drops when the sheet P is dropped and supplied to the processing tray 12. 44 is arranged. As shown in FIG. 6, the paddle 44 aligns the receiving portion 44 a of the paper P that is dropped and supplied onto the processing tray 12, the punching portion 44 b that scrapes off the paper P on the processing tray 12, and the paper P on the processing tray 12. It has a feed portion 44 c and is driven by a paddle motor 46. The paddle 44 is made of a rubber material and has elasticity.

処理トレイ１２のステイプラ１４側の端部には、用紙Ｐ後端を当接して後端位置を規制するストッパ４５が設けられる。処理トレイ１２の略中央には、ステイプル処理され、上下縦整合ローラ３８ａ、３８ｂによりステイプラ１４から取り出された用紙束Ｔを第１あるいは第２の排紙トレイ１６、１８迄搬送する搬送ベルト５０が設けられる。搬送ベルト５０には、用紙束Ｔの後端を引っ掛ける送り爪５０ａが取着されている。   A stopper 45 is provided at the end of the processing tray 12 on the side of the stapler 14 to abut the rear end of the paper P and regulate the rear end position. Near the center of the processing tray 12, there is a conveying belt 50 that carries the sheet bundle T that has been stapled and taken out of the stapler 14 by the vertical alignment rollers 38a and 38b to the first or second discharge trays 16 and 18. Provided. A feed claw 50 a that hooks the rear end of the sheet bundle T is attached to the transport belt 50.

待機トレイ１０は、用紙Ｐを処理トレイ１２に落下供給可能である一方、用紙Ｐを第１あるいは第２の排紙トレイ１６、１８方向に搬送可能となっている。排紙トレイ１６、１８方向への用紙Ｐの搬送は、用紙Ｐの整合を行う待機トレイローラ２８を待機トレイ１０上の用紙Ｐに接触して行う。待機トレイローラ２８は、待機トレイローラ駆動源３０により上下移動を制御され、待機トレイローラモータ３２により回転駆動される。   The standby tray 10 can supply the paper P to the processing tray 12 while being transported in the direction of the first or second paper discharge tray 16 or 18. The conveyance of the paper P in the direction of the paper discharge trays 16 and 18 is performed by bringing the standby tray roller 28 that aligns the paper P into contact with the paper P on the standby tray 10. The standby tray roller 28 is controlled to move up and down by a standby tray roller drive source 30 and is driven to rotate by a standby tray roller motor 32.

待機トレイ１０は用紙Ｐの先端が後端より高くなる状態で用紙Ｐを支持するために傾斜角度θ１となるよう配置される。第１あるいは第２の排紙トレイ１６、１８は排紙トレイ駆動部５２により昇降されて、いずれかを選択される。第１あるいは第２の排紙トレイ１６、１８は用紙Ｐの積載時に待機トレイ１０あるいは処理トレイ１２と略同じ高さに昇降して、排紙される用紙Ｐの整合性向上を図っている。又第１あるいは第２の排紙トレイ１６、１８は用紙Ｐの先端が後端より高くなる状態で用紙Ｐを支持するために傾斜角度θ２となるよう配置される。   The standby tray 10 is arranged to have an inclination angle θ1 in order to support the paper P in a state where the front end of the paper P is higher than the rear end. The first or second paper discharge tray 16 or 18 is lifted or lowered by the paper discharge tray driving unit 52 to select either one. The first or second paper discharge trays 16 and 18 are raised and lowered to substantially the same height as the standby tray 10 or the processing tray 12 when the paper P is stacked to improve the consistency of the paper P to be discharged. The first or second paper discharge trays 16 and 18 are arranged at an inclination angle θ2 to support the paper P in a state where the leading edge of the paper P is higher than the trailing edge.

図７及び図８に示すように待機トレイ１０は、その壁面から突出するように形成された一対のトレイ部材１０ａ、１０ｂを備え、用紙Ｐの幅にスライドした状態で用紙を受け取り用紙Ｐの両側を支持する。トレイ部材１０ａ、１０ｂには用紙Ｐの後端を規制する待機ストッパ１０ｃ、１０ｄが設けられる。   As shown in FIGS. 7 and 8, the standby tray 10 includes a pair of tray members 10 a and 10 b formed so as to protrude from the wall surface, and receives a sheet while sliding to the width of the sheet P, and both sides of the sheet P. Support. The tray members 10a and 10b are provided with standby stoppers 10c and 10d for regulating the rear end of the paper P.

待機トレイ１０上で用紙Ｐの姿勢が悪いと、処理トレイ１２へ用紙Ｐを送り込めない、あるいは処理が出来なくなる。用紙Ｐがその姿勢を保持するための能力は、用紙のコシに依存するため、環境や用紙の種類によって異なる。用紙Ｐを処理トレイ上に自由落下させて送り込み、処理を済ませて吐きだすためには、待機トレイ１０上での用紙Ｐの姿勢が重要である。   If the posture of the paper P on the standby tray 10 is bad, the paper P cannot be sent to the processing tray 12 or the processing cannot be performed. Since the ability of the paper P to hold the posture depends on the stiffness of the paper, it varies depending on the environment and the type of paper. The posture of the paper P on the standby tray 10 is important in order to allow the paper P to freely fall on the processing tray, to send it, to finish the processing, and to eject it.

そこで、待機トレイ１０上で用紙Ｐが安定した姿勢を保つために、図１２（ａ）に示すように、トレイ部材１０ａ、１０ｂの表面上に、用紙積層下端から上端に対して傾斜を有する隆起部１０ｅを縦方向（用紙Ｐの搬送方向）に形成している。この隆起部１０ｅは用紙Ｐがスムースに乗り上がるように、緩やかな変化をもたせて形成する。隆起部１０ｅの形状は、図１２（ｂ）、（ｃ）、（ｄ）に示すように、例えば湾曲した凸状、あるいは倒立した三角柱状、あるいは錐台状に形成することができる。   Therefore, in order to maintain a stable posture of the paper P on the standby tray 10, as shown in FIG. 12A, a bulge having an inclination from the lower end of the paper stack to the upper end on the surface of the tray members 10a and 10b. The portion 10e is formed in the vertical direction (the conveyance direction of the paper P). The raised portion 10e is formed with a gradual change so that the paper P can smoothly run. As shown in FIGS. 12B, 12 </ b> C, and 12 </ b> D, the shape of the raised portion 10 e can be formed in, for example, a curved convex shape, an inverted triangular prism shape, or a frustum shape.

用紙下面より隆起部１０ｅによって湾曲され積載されている用紙Ｐは、用紙の横方向、すなわち、用紙搬送方向とは直角の方向のコシが強化される。このため、鉛直下方向に撓みにくくなり、積載し易くなる。用紙Ｐに穏やかな湾曲をつけながら、処理トレイへと自由落下されるので、処理トレイへ落下するポイントも安定する。このあと、ステイプル処理を行うため、用紙整列を行い易くなる。   The paper P bent and stacked by the raised portion 10e from the lower surface of the paper is strengthened in the lateral direction of the paper, that is, in the direction perpendicular to the paper transport direction. For this reason, it becomes difficult to bend in the perpendicular downward direction, and it becomes easy to load. Since the sheet P is freely dropped to the processing tray while gently bending the sheet P, the point of dropping to the processing tray is also stabilized. Thereafter, the stapling process is performed, so that it becomes easy to align the sheets.

隆起部１０ｅを形成する位置は、トレイ部材１０ａ、１０ｂの用紙先端側であって、例えばトレイ部材１０ａ、１０ｂの約１／３の長さとする。また、トレイ部材１０ａ、１０ｂの幅の２／３程度とする。トレイ部材１０ａ、１０ｂの用紙後端側に形成すると、待機トレイ１０に供給された用紙Ｐにとって、急激な形態変化を与えることになるからである。尚、トレイ部材１０ａ、１０ｂと隆起部１０ｅは、一体成型として作ることもできる。   The position where the raised portion 10e is formed is on the paper leading end side of the tray members 10a and 10b and is, for example, about 1/3 the length of the tray members 10a and 10b. Moreover, it is set to about 2/3 of the width of the tray members 10a and 10b. This is because, when the paper is formed on the rear end side of the tray members 10a and 10b, the paper P supplied to the standby tray 10 is suddenly changed. Note that the tray members 10a and 10b and the raised portion 10e can be formed as an integral molding.

トレイ部材１０ａ、１０ｂは、待機トレイ１０との接合部を支点として、上方、下方に回動可能としてもよい。用紙Ｐを待機トレイ１０上に整列よく載せるため、下側カールした用紙Ｐを載せる場合には、トレイ部材１０ａ、１０ｂは上向きに回動し、上側カールした用紙Ｐを載せる場合には、トレイ部材１０ａ、１０ｂは下向きに回動させる。   The tray members 10a and 10b may be rotatable upward and downward with a joint portion with the standby tray 10 as a fulcrum. In order to place the paper P on the standby tray 10 in an aligned manner, when placing the lower curled paper P, the tray members 10a and 10b rotate upward, and when placing the upper curled paper P, the tray member 10a and 10b are rotated downward.

待機トレイ１０は待機トレイモータ３４によりスライド移動される。待機トレイ１０から処理トレイ１２に達するまでの間には、待機トレイ１０上の用紙Ｐを処理トレイ１２に落下供給する際に、用紙Ｐが、搬送方向と直交する横方向に乱れるのを防止して横整合を行う、図９に示す横整合板４７ａ、４７ｂが設けられる。横整合板４７ａ、４７ｂは、横整合モータ４８により用紙Ｐの幅に合わせるようスライド可能に形成されている。   The standby tray 10 is slid by the standby tray motor 34. During the period from the standby tray 10 to the processing tray 12, when the paper P on the standby tray 10 is dropped and supplied to the processing tray 12, the paper P is prevented from being disturbed in the lateral direction perpendicular to the transport direction. Lateral alignment plates 47a and 47b shown in FIG. 9 are provided. The lateral alignment plates 47a and 47b are formed to be slidable so as to be adjusted to the width of the paper P by the lateral alignment motor 48.

次に作用について述べる。画像形成装置５にて画像形成され排紙ローラ６から用紙Ｐが供給されると、用紙後処理装置７は、用紙Ｐの後処理をする場合としない場合、あるいは先行する用紙Ｐが後処理を実行中であるか後処理を終了したかにより異なる操作を行う。   Next, the operation will be described. When an image is formed by the image forming apparatus 5 and the paper P is supplied from the paper discharge roller 6, the paper post-processing device 7 performs the post-processing when the paper P is post-processed or not. Different operations are performed depending on whether the process is being executed or the post-processing is finished.

後処理をしない場合、例えば第１の排紙トレイ１６は図３に点線で示す位置にスライド移動していて、待機トレイ１０から排紙される用紙Ｐを整合性良く積載可能となっている。後処理をしない場合には、入り口ローラ２２からペーパーパス天井３６を介して給紙ローラ２４に搬送された用紙Ｐは、給紙ローラ２４により待機トレイ１０に給紙される。次いで用紙Ｐは、待機トレイ１０上に降下され矢印ｆ方向に回転される待機トレイローラ２８により搬送され第１の排紙トレイ１６に排紙される。   When the post-processing is not performed, for example, the first paper discharge tray 16 is slid to the position indicated by the dotted line in FIG. 3, and the paper P discharged from the standby tray 10 can be stacked with good consistency. When no post-processing is performed, the paper P conveyed from the entrance roller 22 to the paper feed roller 24 through the paper path ceiling 36 is fed to the standby tray 10 by the paper feed roller 24. Next, the paper P is transported by the standby tray roller 28 that is lowered onto the standby tray 10 and rotated in the direction of the arrow f, and is discharged onto the first paper discharge tray 16.

このようにして第１の排紙トレイ１６上には順次用紙が積載される。この時第１の排紙トレイ１６は傾斜角度がθ２となるよう配置されていて、用紙先端が後端より高くなっていることから、例えば用紙Ｐが図１０に点線で示す様に山なりにカールした状態で第１の排紙トレイ１６上に排紙されたとしても、先行して第１の排紙トレイ１６上に載置される用紙Ｐが後続の用紙Ｐの先端との接触により押し出されることがない。即ち、排出された用紙Ｐは順番が狂うことなく順次第１の排紙トレイ１６上に載置される。又、先行する用紙Ｐが後続の用紙Ｐに押されて多少位置ずれを生じたとしても、傾斜角度θ２があることから、用紙Ｐは自重により落下して、第１の排紙トレイ１６上にて後端が揃った状態に整合して積載され、用紙Ｐの排紙処理を完了する。   In this way, the sheets are sequentially stacked on the first paper discharge tray 16. At this time, the first paper discharge tray 16 is arranged so that the inclination angle is θ2, and the front end of the paper is higher than the rear end, so that, for example, the paper P has a mountain as shown by the dotted line in FIG. Even if the paper is discharged onto the first paper discharge tray 16 in a curled state, the paper P placed on the first paper discharge tray 16 is pushed out by contact with the leading edge of the subsequent paper P. It will not be. That is, the discharged paper P is sequentially placed on the first paper discharge tray 16 without being out of order. Even if the preceding paper P is pushed by the succeeding paper P and is slightly misaligned, the paper P falls due to its own weight on the first paper discharge tray 16 because of the inclination angle θ2. Thus, the rear ends are aligned and stacked, and the paper P discharge processing is completed.

次に後処理であるステイプル処理を行う場合であって、処理トレイ２０上に先行してステイプル処理を実行中の用紙Ｐがない場合について述べる。この時待機トレイ１０は、トレイ部材１０ａ、１０ｂを夫々図１１に点線で示す位置まで矢印ｍ方向あるいは矢印ｎ方向にスライド移動して、用紙Ｐの落下供給路を開放する。又横整合板４７ａ、４７ｂは給紙ローラ２４から落下される用紙Ｐの横方向を整合するために、横整合板４７ａ、４７ｂの間が略用紙Ｐと同じ幅になるよう配置される。これにより、給紙ローラ２４により給紙される用紙Ｐは、待機トレイ１０により搬送を邪魔されることなく、直接処理トレイ１２上に落下供給される。   Next, a case where a stapling process, which is a post-process, is performed and there is no sheet P on which a stapling process is being executed prior to the processing tray 20 will be described. At this time, the standby tray 10 slides and moves the tray members 10a and 10b to the positions indicated by the dotted lines in FIG. The horizontal alignment plates 47a and 47b are arranged so that the width between the horizontal alignment plates 47a and 47b is substantially the same as the width of the paper P in order to align the horizontal direction of the paper P dropped from the paper feed roller 24. Thereby, the paper P fed by the paper feed roller 24 is dropped and supplied directly onto the processing tray 12 without being interrupted by the standby tray 10.

落下供給時、上縦整合ローラ３８ａは上方に退避されていて、パドル４４の受け部４４ａが用紙Ｐ後端を受ける。用紙Ｐの両側は、横整合板４７ａ、４７ｂに接触しながら落下して、横方向を整合される。次いでパドル４４は矢印ｏ方向に回転して、受け部４４ａから用紙Ｐ後端を落下し、はたき部４４ｂにより処理トレイ１２上にはたき落とす。更にパドル４４は、送り部４４ｃにより用紙Ｐを矢印ｑ方向に送り、用紙Ｐ後端をストッパ４５に当接して用紙Ｐの縦方向の整合を完了する。尚、処理トレイ１２上での用紙Ｐの縦方向の整合は、上縦整合ローラ３８ａをその都度上下して上縦整合ローラ３８ａにより行うようにしても良い。   At the time of dropping, the upper vertical alignment roller 38a is retracted upward, and the receiving portion 44a of the paddle 44 receives the rear end of the paper P. Both sides of the paper P fall while contacting the horizontal alignment plates 47a and 47b, and are aligned in the horizontal direction. Next, the paddle 44 rotates in the direction of the arrow o, the trailing edge of the paper P is dropped from the receiving portion 44a, and is knocked onto the processing tray 12 by the knocking portion 44b. Further, the paddle 44 feeds the paper P in the direction of the arrow q by the feeding portion 44c, and the rear end of the paper P is brought into contact with the stopper 45 to complete the vertical alignment of the paper P. The vertical alignment of the paper P on the processing tray 12 may be performed by the upper vertical alignment roller 38a by moving the upper vertical alignment roller 38a up and down each time.

このようにして、画像形成された用紙Ｐを順次横方向及び縦方向に整合しながら、給紙ローラ２４から直接処理トレイ１２に積載する。用紙Ｐが所定枚数に達したら、ステイプラ１４は所望の位置にて処理トレイ１２上の用紙Ｐをステイプルして束状にして用紙束Ｔを形成する。この後上縦整合ローラ３８ａを用紙束上に降下して、矢印ｒ方向に回転する上縦整合ローラ３８ａ及び矢印ｓ方向に回転する下縦整合ローラ３８ｂにより用紙束Ｔを挟持し、第１の排紙トレイ１６方向に束搬送する。用紙束Ｔの後端は、上下縦整合ローラ３８ａ、３８ｂを通過すると、矢印ｔ方向に回転される搬送ベルト５０の送り爪５０ａに引っ掛けられ第１の排紙トレイ１６上に束出しされる。   In this way, the image-formed sheets P are stacked directly on the processing tray 12 from the sheet feed roller 24 while sequentially aligning in the horizontal and vertical directions. When the number of sheets P reaches a predetermined number, the stapler 14 staples the sheets P on the processing tray 12 at a desired position to form a bundle of sheets T. Thereafter, the upper vertical alignment roller 38a is lowered onto the sheet bundle, and the sheet bundle T is sandwiched between the upper vertical alignment roller 38a rotating in the direction of arrow r and the lower vertical alignment roller 38b rotating in the direction of arrow s. The bundle is conveyed in the direction of the paper discharge tray 16. When the rear end of the sheet bundle T passes through the vertical and vertical alignment rollers 38 a and 38 b, the sheet bundle T is caught on the feeding claw 50 a of the conveyance belt 50 rotated in the direction of the arrow t and bundled on the first paper discharge tray 16.

この時第１の排紙トレイ１６は図３に点線で示す位置から実線で示す位置にスライド移動されている。又第１の排紙トレイ１６は傾斜角度がθ２となるよう配置されていて、用紙先端が後端より高くなっていることから、先行して第１の排紙トレイ１６上に束出しされた用紙Ｐが後続の用紙束Ｔの先端との接触により押し出されることがない。又、先行する用紙束Ｔが後続の用紙Ｐにより多少位置ずれを生じたとしても、傾斜角度θ２があることから、用紙束Ｔは自重により落下して、第１の排紙トレイ１６上にて後端が揃った状態に整合して積載され用紙Ｐのステイプル処理を完了する。   At this time, the first paper discharge tray 16 is slid from the position indicated by the dotted line to the position indicated by the solid line in FIG. Further, the first discharge tray 16 is arranged so that the inclination angle is θ2, and the leading end of the sheet is higher than the trailing end, so that the first discharge tray 16 is bundled on the first discharge tray 16 in advance. The paper P is not pushed out by contact with the tip of the subsequent paper bundle T. Even if the preceding sheet bundle T is slightly misaligned by the succeeding sheet P, the sheet bundle T falls by its own weight on the first paper discharge tray 16 because of the inclination angle θ2. The stapling process of the paper P stacked in a state where the rear ends are aligned is completed.

次に後処理であるステイプル処理を行う場合であって、処理トレイ２０上に先行してステイプル処理を実行中の用紙Ｐが残っている場合について述べる。この時待機トレイ１０にあっては、トレイ部材１０ａ、１０ｂが、図１１の点線で示す位置から夫々矢印ｍ方向と反対方向あるいは矢印ｎ方向と反対方向にスライド移動して、図１１に実線で示す位置にあり用紙Ｐを支持可能となっている。又、待機トレイローラ２８は、用紙Ｐの妨げとならないよう待機トレイ１０上方に退避されている。画像形成装置５から排出され給紙ローラ２４により供給される用紙Ｐは、処理トレイ１２が空くのを待つために一旦待機トレイ１０上に載置される。   Next, a case where a stapling process, which is a post-process, is performed and the sheet P on which the stapling process is being executed remains on the processing tray 20 will be described. At this time, in the standby tray 10, the tray members 10 a and 10 b slide from the position indicated by the dotted line in FIG. 11 in the direction opposite to the arrow m direction or the direction opposite to the arrow n direction, respectively. The paper P can be supported at the position shown. The standby tray roller 28 is retracted above the standby tray 10 so as not to interfere with the paper P. The paper P discharged from the image forming apparatus 5 and supplied by the paper supply roller 24 is temporarily placed on the standby tray 10 in order to wait for the processing tray 12 to become empty.

待機トレイ１０に載置された用紙Ｐは、待機トレイ１０上に降下し矢印ｆ方向と反対方向に回転される待機トレイローラ２８により待機ストッパ１０ｃ、１０ｄ方向に送られ、用紙Ｐ後端を待機ストッパ１０ｃ、１０ｄに当接して縦整合される。更に待機トレイ１０は傾斜角度がθ１となるよう配置されていて、用紙先端が後端より高くなっていることから、用紙Ｐは、自重によっても後端を待機ストッパ１０ｃ、１０ｄに当接して縦整合する。   The paper P placed on the standby tray 10 descends on the standby tray 10 and is sent in the standby stoppers 10c and 10d directions by the standby tray roller 28 rotated in the direction opposite to the arrow f direction. Abutting against the stoppers 10c and 10d, vertical alignment is performed. Further, since the standby tray 10 is arranged so that the inclination angle is θ1, and the leading edge of the sheet is higher than the trailing edge, the sheet P is vertically contacted by the dead weight with the waiting stoppers 10c and 10d by its own weight. Align.

又待機トレイ１０は傾斜角度がθ１となるよう配置されていることから、例えば用紙Ｐが山なりにカールした状態で給紙ローラ２４から供給され待機トレイ１０上に給紙されたとしても、先行して待機トレイ１０上に載置される用紙Ｐが後続の用紙Ｐの先端との接触により押し出されることがない。即ち、供給された用紙Ｐは順番が狂うことなく順次待機トレイ１０上に載置される。又、先行する用紙Ｐが後続の用紙Ｐに押されて多少位置ずれを生じたとしても、傾斜角度θ１があることから、用紙Ｐは自重により後端が待機ストッパ１０ｃ、１０ｄに当接する位置まで落下して、待機トレイ１０上にて後端が揃った状態に整合して積載される。   Further, since the standby tray 10 is arranged so that the inclination angle is θ1, even if the paper P is supplied from the paper supply roller 24 and is fed onto the standby tray 10 in a curled state, for example, Thus, the paper P placed on the standby tray 10 is not pushed out by contact with the leading edge of the subsequent paper P. That is, the supplied paper P is sequentially placed on the standby tray 10 without being out of order. Even if the preceding paper P is pushed by the succeeding paper P and is slightly misaligned, there is an inclination angle θ1, so that the paper P reaches the position where the trailing edge comes into contact with the standby stoppers 10c and 10d by its own weight. It is dropped and loaded in alignment with the rear end aligned on the standby tray 10.

この間に処理トレイ１２上の先行する用紙Ｐが第１の排紙トレイ１６側に排出されて処理トレイ１２が空になると、待機トレイ１０は、トレイ部材１０ａ、１０ｂを図１１の実線で示す位置から図１１の一点鎖線で示す位置を経由して図１１の点線で示す位置まで夫々矢印ｍ方向あるいは矢印ｎ方向にスライド移動する。これにより待機トレイ１０上に待機されていた例えば２枚の用紙Ｐは、トレイ部材１０ａ、１０ｂが図１１の一点鎖線で示す位置に達すると、トレイ部材１０ａ、１０ｂの間から処理トレイ１２上に落下供給される。この時横整合板４７ａ、４７ｂの両者の間隔は、用紙Ｐと略同じ幅になるよう配置されている。従って待機トレイ１０から落下される用紙Ｐは、両側を横整合板４７ａ、４７ｂに規制されて、横方向を整合される。   During this time, when the preceding paper P on the processing tray 12 is discharged to the first paper discharge tray 16 side and the processing tray 12 becomes empty, the standby tray 10 positions the tray members 10a and 10b as indicated by solid lines in FIG. 11 to the position indicated by the dotted line in FIG. 11 through the position indicated by the one-dot chain line in FIG. 11, respectively, in the direction of arrow m or arrow n. As a result, for example, two sheets of paper P waiting on the standby tray 10 reach the position indicated by the one-dot chain line in FIG. 11 on the processing tray 12 from between the tray members 10a and 10b. Drop supplied. At this time, the interval between the lateral alignment plates 47a and 47b is arranged to be substantially the same width as the paper P. Accordingly, the sheet P dropped from the standby tray 10 is regulated in the lateral direction by being regulated by the lateral alignment plates 47a and 47b on both sides.

処理トレイ１２に落下された２枚の用紙Ｐの下側の用紙Ｐは、矢印ｓ方向と反対方向に回転される下縦整合ローラ３８ｂにより矢印ｑ方向に送られて、用紙Ｐ後端をストッパ４５に当接して用紙Ｐの縦方向の整合を完了する。処理トレイ１２に落下された２枚の用紙Ｐの上側の用紙Ｐは、矢印ｒ方向と反対方向に回転される上縦整合ローラ３８ａにより矢印ｑ方向に送られて、用紙Ｐ後端をストッパ４５に当接して用紙Ｐの縦方向の整合を完了し、この後上縦整合ローラ３８ａは上方に退避される。   The lower sheet P of the two sheets P dropped on the processing tray 12 is sent in the direction of the arrow q by the lower vertical alignment roller 38b rotated in the direction opposite to the direction of the arrow s, and the rear end of the sheet P is stopped by the stopper. 45, the vertical alignment of the paper P is completed. The upper sheet P of the two sheets P dropped on the processing tray 12 is sent in the direction of the arrow q by the upper vertical alignment roller 38a rotated in the direction opposite to the direction of the arrow r, and the trailing end of the sheet P is stopped at the stopper 45. The vertical alignment of the paper P is completed, and then the upper vertical alignment roller 38a is retracted upward.

画像形成装置５から排出される３枚目以降の用紙Ｐは待機トレイ１０上に待機されることなくトレイ部材１０ａ、１０ｂの間から直接処理トレイ１２上に落下供給される。この後３枚目以降の用紙Ｐは、パドル４４により先に処理トレイ１２上に積載される用紙Ｐ上に順次整合される。   The third and subsequent sheets P ejected from the image forming apparatus 5 are directly dropped onto the processing tray 12 from between the tray members 10a and 10b without waiting on the standby tray 10. Thereafter, the third and subsequent sheets P are sequentially aligned on the sheet P loaded on the processing tray 12 by the paddle 44 first.

処理トレイ１２上に積載される用紙Ｐが所定枚数に達すると、ステイプラ１４によりステイプル処理され用紙束Ｔを形成される。この後用紙束Ｔは上下縦整合ローラ３８ａ、３８ｂにより第１の排紙トレイ１６方向に束搬送され、更に後端が搬送ベルト５０の送り爪５０ａに引っ掛けられて、第１の排紙トレイ１６上に束出しされ、用紙Ｐのステイプル処理を完了する。   When the number of sheets P stacked on the processing tray 12 reaches a predetermined number, the stapler 14 performs a stapling process to form a sheet bundle T. Thereafter, the sheet bundle T is conveyed in the direction of the first sheet discharge tray 16 by the vertical and vertical alignment rollers 38a and 38b, and the rear end of the sheet bundle T is hooked on the feed claw 50a of the conveyance belt 50. Bundled up, the stapling process for the paper P is completed.

このように構成される本実施例にあっては、画像形成後にステイプル処理を行う場合であって、処理トレイ１２上にて先行するステイプル処理が終了していない場合には、処理トレイ１２上方に待機トレイ１０を設けて後続の用紙Ｐを待機する。そして処理トレイ１２が空くのを待って、待機トレイ１０に待機された用紙Ｐを落下供給して処置トレイ１６に移動する。従って用紙後処理装置７内の待機トレイ１０から処理トレイ１２に至るまでの実質的な搬送路を短縮でき、用紙後処理装置の小型化を得られる。   In the present embodiment configured as described above, when stapling is performed after image formation and the preceding stapling on the processing tray 12 has not been completed, the stapling processing is performed above the processing tray 12. A standby tray 10 is provided to wait for the subsequent paper P. Then, after waiting for the processing tray 12 to become empty, the paper P waiting in the standby tray 10 is dropped and supplied to the treatment tray 16. Accordingly, the substantial conveyance path from the standby tray 10 to the processing tray 12 in the paper post-processing device 7 can be shortened, and the paper post-processing device can be downsized.

又待機トレイ１０に傾斜角度θ１を持たせることにより、待機トレイ１０上で用紙Ｐを自重により整合可能となり、更に先行して載置されていた用紙Ｐが後続の用紙Ｐにより押し出される恐れが無く、待機トレイ１０上での用紙Ｐの整合性を高められ、用紙Ｐのジャムを防止でき更に待機トレイ１０上の用紙の載置の順番の狂いを防止できる。同様に第１あるいは第２の排紙トレイ１６、１８に傾斜角度θ２を持たせることにより、第１あるいは第２の排紙トレイ１６、１８に先行して載置されていた用紙Ｐあるいは用紙束Ｔが後続の用紙Ｐあるいは用紙束Ｔにより押し出される恐れが無く第１あるいは第２の排紙トレイ１６、１８上での用紙Ｐの整合性を高められ、用紙Ｐのジャムを防止でき更に第１あるいは第２の排紙トレイ１６、１８上の用紙Ｐあるいは用紙束Ｔの載置の順番の狂いを防止できる。   Further, by providing the standby tray 10 with the inclination angle θ1, it is possible to align the paper P on the standby tray 10 by its own weight, and there is no possibility that the paper P previously placed is pushed out by the subsequent paper P. Thus, the consistency of the paper P on the standby tray 10 can be improved, jamming of the paper P can be prevented, and further, the order of placement of the paper on the standby tray 10 can be prevented. Similarly, by providing the first or second paper discharge trays 16 and 18 with an inclination angle θ2, the paper P or the paper bundle placed prior to the first or second paper discharge trays 16 or 18 is provided. There is no fear that T will be pushed out by the subsequent paper P or the paper bundle T, the consistency of the paper P on the first or second paper discharge trays 16 and 18 can be improved, and jamming of the paper P can be prevented. Alternatively, it is possible to prevent the placement order of the paper P or the paper bundle T on the second paper discharge trays 16 and 18.

本発明は上記した実施の形態に限定されることなく、特許請求の範囲に記載した発明の範囲内で、種々の変形が可能であり、それらも本発明の範囲内に含まれるものであることはいうまでもない。   The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

なお、本発明において処理トレイに積載された用紙に行う後処理は、ステイプル処理を記載してある。しかしながら、この後処理はステイプルを行う場合に限定されず、例えば用紙にホールパンチ（穴あけ）処理を行うといった後処理でも問題ない。この場合、処理トレイに積載された用紙は、複数枚でなく一枚の用紙であっても何ら問題ない。またそのような後処理機構を有した後処理装置に対しても、本発明は効果を発揮するのは言うまでもない。   In the present invention, stapling is described as the post-processing performed on the sheets stacked on the processing tray. However, this post-processing is not limited to the case where stapling is performed, and there is no problem even in post-processing such as performing hole punching (punching) processing on a sheet. In this case, there is no problem even if the sheets stacked on the processing tray are not a plurality of sheets but a single sheet. Further, it goes without saying that the present invention is effective even for an aftertreatment apparatus having such an aftertreatment mechanism.

本発明の一実施形態に係る用紙後処理装置の要部を示す斜視図である。It is a perspective view which shows the principal part of the paper post-processing apparatus which concerns on one Embodiment of this invention. 本発明の一実施形態に係る用紙後処理装置の要部を示す上面図である。It is a top view which shows the principal part of the paper post-processing apparatus which concerns on one Embodiment of this invention. 本発明の一実施形態に係る用紙後処理装置を示す概略構成図である。It is a schematic block diagram which shows the paper post-processing apparatus which concerns on one Embodiment of this invention. 本発明の一実施形態に係る用紙後処理装置のステイプラを示す斜視図である。1 is a perspective view showing a stapler of a paper post-processing apparatus according to an embodiment of the present invention. 本発明の一実施形態に係る縦整合ローラを示す斜視図である。It is a perspective view which shows the vertical alignment roller which concerns on one Embodiment of this invention. 本発明の一実施形態に係るパドルを示す説明図である。It is explanatory drawing which shows the paddle which concerns on one Embodiment of this invention. 本発明の一実施形態に係る待機トレイ及び処理トレイを示す概略斜視図である。It is a schematic perspective view which shows the standby tray and processing tray which concern on one Embodiment of this invention. 本発明の一実施形態に係る待機トレイ及び処理トレイを示す上面図である。It is a top view which shows the standby tray and processing tray which concern on one Embodiment of this invention. 本発明の一実施形態に係る横整合板及び搬送ベルトを示す概略斜視図である。It is a schematic perspective view which shows the horizontal alignment board and conveyance belt which concern on one Embodiment of this invention. 本発明の一実施形態に係る待機トレイあるいは排紙トレイ上の用紙が押し出される状態を示す説明図である。It is explanatory drawing which shows the state by which the paper on the standby tray or paper discharge tray which concerns on one Embodiment of this invention is extruded. 本発明の一実施形態に係る待機トレイの移動を示す説明図である。It is explanatory drawing which shows the movement of the standby tray which concerns on one Embodiment of this invention. 本発明の一実施形態に係るトレイ部材を示す説明図である。It is explanatory drawing which shows the tray member which concerns on one Embodiment of this invention.

符号の説明Explanation of symbols

５…画像形成装置、７…用紙後処理装置、10…待機トレイ、１０ａ、１０ｂ…トレイ部材、１０ｃ、１０ｄ…待機ストッパ、１０ｅ…隆起部、12…処理トレイ、14…ステイプラ、16…第1の排紙トレイ、18…第2の排紙トレイ、22…入口ローラ、22a…上入口ローラ、22b…下入口ローラ、24…給紙ローラ、26…入口ローラモータ、28…待機トレイローラ、30…待機トレイローラ駆動源、32…待機トレイローラモータ、34…待機トレイモータ、36…ペーパーパス天井、38a…上縦整合ローラ、38b…下縦整合ローラ、40…縦整合上ローラモータ、42…縦整合下ローラモータ、44…パドル、45…ストッパ、46…パドルモータ、47…横整合板、48…横整合モータ、49…ステイプル駆動部、50…搬送ベルト、５０ａ…送り爪。 DESCRIPTION OF SYMBOLS 5 ... Image forming apparatus, 7 ... Paper post-processing apparatus, 10 ... Standby tray, 10a, 10b ... Tray member, 10c, 10d ... Standby stopper, 10e ... Raised part, 12 ... Processing tray, 14 ... Stapler, 16 ... First Discharge tray, 18 ... second discharge tray, 22 ... entrance roller, 22a ... upper entrance roller, 22b ... lower entrance roller, 24 ... feed roller, 26 ... inlet roller motor, 28 ... standby tray roller, 30 ... Standby tray roller drive source, 32 ... Standby tray roller motor, 34 ... Standby tray motor, 36 ... Paper path ceiling, 38a ... Upper vertical alignment roller, 38b ... Lower vertical alignment roller, 40 ... Vertical alignment upper roller motor, 42 ... Vertical alignment lower roller motor, 44 ... paddle, 45 ... stopper, 46 ... paddle motor, 47 ... horizontal alignment plate, 48 ... horizontal alignment motor, 49 ... staple drive unit, 50 ... conveyor belt, 50a ... feed claw.

Claims (5)

画像形成装置から排出される用紙を待機させる待機トレイと、
前記待機トレイの下方に配置され、前記待機トレイから落下供給される前記用紙及び／又は前記待機トレイを経由せずに前記画像形成装置から排出される前記用紙を積載する処理トレイと、
前記処理トレイに積載される前記用紙に後処理を行う処理機構と、
前記処理トレイから排出される後処理終了後の前記用紙を積載する排紙トレイとを具備した用紙後処理装置であって、
前記待機トレイは、前記排出された用紙を載置する一対のトレイ部材が、待機トレイの壁面部から突出するように形成され、前記トレイ部材の表面上に、前記用紙積層下端から上端に対して傾斜を有する隆起部を前記用紙の搬送方向に形成していることを特徴とする用紙後処理装置。 A standby tray for waiting for paper discharged from the image forming apparatus;
A processing tray that is disposed below the standby tray and that stacks the paper that is dropped from the standby tray and / or the paper that is discharged from the image forming apparatus without passing through the standby tray;
A processing mechanism for performing post-processing on the sheets stacked on the processing tray;
A paper post-processing device comprising a paper discharge tray for stacking the paper after completion of post-processing discharged from the processing tray;
The standby tray is formed such that a pair of tray members on which the discharged paper is placed protrudes from the wall surface portion of the standby tray. A paper post-processing apparatus, wherein a ridge having an inclination is formed in the paper transport direction. 前記隆起部は、前記トレイ部材の用紙先端側に形成されていることを特徴とする請求項１記載の用紙後処理装置。   The paper post-processing apparatus according to claim 1, wherein the raised portion is formed on a paper leading end side of the tray member. 前記隆起部は、前記トレイ部材の約１／３の長さであることを特徴とする請求項１記載の用紙後処理装置。   2. The sheet post-processing apparatus according to claim 1, wherein the raised portion has a length of about 1/3 of the tray member. 前記隆起部は、前記トレイ部材の幅の約２／３であることを特徴とする請求項１記載の用紙後処理装置。   The sheet post-processing apparatus according to claim 1, wherein the raised portion is about 2/3 of the width of the tray member. 前記トレイ部材と前記隆起部は、一体成型で形成されていることを特徴とする請求項１記載の用紙後処理装置。   The sheet post-processing apparatus according to claim 1, wherein the tray member and the raised portion are formed by integral molding.
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